Patentable/Patents/US-11285453
US-11285453

Moisture and hydrogen adsorption getter and method of fabricating the same

PublishedMarch 29, 2022
Assigneenot available in USPTO data we have
Inventorsnot available in USPTO data we have
Technical Abstract

A moisture and hydrogen adsorption getter is provided. The moisture and hydrogen adsorption getter includes a silicon substrate including a concave portion and a convex portion, a silicon oxide layer conformally provided along a surface of the concave portion and a surface of the convex portion and configured to adsorb moisture, and a hydrogen adsorption pattern disposed on the silicon oxide layer. A portion of the silicon oxide layer is exposed between portions of the hydrogen adsorption pattern.

Patent Claims
7 claims

Legal claims defining the scope of protection, as filed with the USPTO.

1

1. A method of fabricating a moisture and hydrogen adsorption getter, the method comprising: preparing a silicon substrate including a concave portion and a convex portion; forming a plurality of holes extending downward from surfaces of the concave portion and the convex portion, wherein a plurality of metal particles is provided in the plurality of holes, forming a silicon oxide layer for adsorbing moisture; and forming a hydrogen adsorption pattern on the silicon oxide layer.

2

2. A method of fabricating a moisture and hydrogen adsorption getter, the method comprising: preparing a silicon substrate including a concave portion and a convex portion; forming a plurality of holes extending downward from surfaces of the concave portion and the convex portion, wherein a plurality of metal particles is provided in the plurality of holes, forming a silicon oxide layer for adsorbing moisture by immersing the silicon substrate in an acid solution; and forming a hydrogen adsorption pattern on the silicon oxide layer.

3

3. The method of claim 2 , further comprising: forming a plurality of holes extending downward from surfaces of the concave portion and the convex portion before the forming of the silicon oxide layer.

4

4. The method of claim 2 , wherein the preparing of the silicon substrate comprises: forming a mask film that covers a first region of the silicon substrate and exposes a second region of the silicon substrate; and immersing the silicon substrate in a basic solution to form the concave portion and the convex portion on the second region of the silicon substrate.

5

5. The method of claim 2 , wherein the forming of the hydrogen adsorption pattern comprises: forming a hydrogen adsorption preliminary pattern on the silicon oxide layer; and oxidizing the hydrogen adsorption preliminary pattern by a thermal treatment method to form the hydrogen adsorption pattern.

6

6. A method of fabricating a moisture and hydrogen adsorption getter, the method comprising: preparing a silicon substrate including a concave portion and a convex portion; forming a silicon oxide layer for adsorbing moisture by immersing the silicon substrate in an acid solution; and forming a hydrogen adsorption pattern on the silicon oxide layer, forming a plurality of holes extending downward from surfaces of the concave portion and the convex portion before the forming of the silicon oxide layer, wherein the forming of the holes comprises: forming a metal thin layer on the concave portion and the convex portion; thermally treating the metal thin layer formed on the concave portion and the convex portion to form metal particles; and forming the holes extending downward from the surfaces corresponding to the metal particles by a method of etching the silicon substrate including the concave portion and the convex portion by using the metal particles as a catalyst.

7

7. A method of fabricating a moisture and hydrogen adsorption getter, the method comprising: preparing a silicon substrate including a concave portion and a convex portion; forming a silicon oxide layer for adsorbing moisture by immersing the silicon substrate in an acid solution; forming a hydrogen adsorption pattern on the silicon oxide layer; and forming passivation metal catalyst particles on the hydrogen adsorption pattern, wherein the forming of the passivation metal catalyst particles comprises: forming a metal catalyst pattern on the hydrogen adsorption pattern; and thermally treating the metal catalyst pattern to form the passivation metal catalyst particles.

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Patent Metadata

Filing Date

October 16, 2020

Publication Date

March 29, 2022

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Cite as: Patentable. “Moisture and hydrogen adsorption getter and method of fabricating the same” (US-11285453). https://patentable.app/patents/US-11285453

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